Chii chinoshanda se crankshaft sensor yemotokari?
Sensor yecrankshaft (inozivikanwawo se sensor yekumhanya kweinjini) ndiyo sensor huru yesystem yekudzora electronic yeinjini. Inonyanya kushandiswa kuona nzvimbo yecrankshaft, chiratidzo chepamusoro chepakati chepiston, uye kumhanya kweinjini, uye inotumira masaini kuECU kudzora nguva yekupisa uye kupinza mafuta. Sensor iyi inowanzoiswa kumberi kwecrankshaft, kumberi kwecamshaft, flywheel, kana muparidzi. Inofanira kushanda pamwe chete nesensor yekumira yecamshaft.
Zvichienderana nepfungwa yayo yekushanda, inogona kuiswa mumhando nhatu: magnetic pulse type, Hall type, uye photoelectric type: magnetic pulse type inogadzira sine wave signal nekutanga shanduko yemagnetic field kuburikidza nesignal disc. Hall type inoburitsa square wave signal nekushandisa trigger blade. Photoelectric type inogadzira pulse voltage nekushandisa light hole transmission. Hall type inoda external 5V power supply, uye photoelectric type inokwanisa kuora kwesignal accuracy nekuda kwekusvibiswa kwemafuta. Zvikanganiso zvakajairika zvinosanganisira kukanganiswa kwesignal kunokonzerwa newaya dzinochembera, uye kuoma kutanga nekuda kwe sensor yakasviba. Mamiriro asina kujairika anogona kukonzera engine fault light uye kukonzera kusakwana kwesimba kana kutadza kutanga. Nzira yetekinoroji yemazuva ano inoratidza mafambiro ekushanduka kubva kuanalog signals kusvika ku digital detection.
Nheyo yekuona sensor yenzvimbo yemagnetic pulse type crankshaft
Sensor yenzvimbo yemagnetic pulse yeNissan Company
Iyi sensor yekumira kwecrankshaft yakaiswa seri kwepulley kumberi kwecrankshaft. Kumashure kwepulley, kune dhisiki yakatetepa yakatenderera ine mazino matete (anoshandiswa kugadzira masaini, anonzi signal disc), iyo yakaiswa pamwe chete necrankshaft pulley pacrankshaft uye inotenderera necrankshaft. Kumucheto wekunze kwedhisiki yesignal, kune zino rimwe nerimwe 4° rakatevedza denderedzwa. Kune mazino makumi mapfumbamwe, uye matatu akarongwa pa120° yega yega, ese ari matatu. Bhokisi resensor rakaiswa kumucheto kwedhisiki yesignal ijenareta yesignal inogadzira signal yemagetsi. Jenareta yesignal ine misoro mitatu yemagineti yakatenderedza permanent magnet pa induction coil, uko magnetic head ② inogadzira signal ye120°, uye magnetic heads ① ne ③ pamwe chete zvinogadzira 1° crankshaft angle signal. Musoro wemagineti ② wakatarisana nekubuda kwe120° kwedhisiki rechiratidzo, musoro wemagineti ① uye ③ zvakatarisana neringi yegiya redhisiki rechiratidzo, nemusiyano wechikamu chekuiswa kwekona yecrankshaft. Jenareta yechiratidzo ine macircuit ekuwedzera nekugadzira masaini, uye chinobatanidza chekunze chine maburi mana, chine buri "1" riri mutsetse wekubuda kwechiratidzo we120°, buri "2" riri mutsetse wemagetsi wedunhu rekuwedzera nekugadzira masaini, buri "3" riri mutsetse wekubuda kwechiratidzo we1°, uye buri "4" riri mutsetse wepasi. Kuburikidza nechinobatanidza ichi, chiratidzo chinogadzirwa nesensor yenzvimbo yecrankshaft chinotumirwa kuECU.
Kana injini ichitenderera, mazino nezviratidzo zvedhisiki rechiratidzo zvinokonzera shanduko mumunda wemagineti unopfuura nepakati pe induction coil, nokudaro zvichigadzira simba remagetsi rinochinjana mu induction coil. Mushure mekusefa nekugadzira, inova chiratidzo chekurova. Mushure mekutenderera kamwe chete kweinjini, magnetic head ② inogadzira zviratidzo zvekurova 3 120°, uye magnetic heads ① ne ③ imwe neimwe inogadzira zviratidzo zvekurova 90 (kuchinjana). Sezvo magnetic heads ① ne ③ dzakaiswa pa3° crankshaft angle interval uye imwe neimwe inogadzira chiratidzo chekurova 4° yega yega, musiyano wechikamu pakati pezviratidzo zvekurova zvinogadzirwa nemagnetic heads ① ne ③ uri 90° chaiyo. Zviratidzo zviviri izvi zvekurova zvinotumirwa kusignal amplification and shaping circuit kuti zviitwe synthesis, uye ipapo 1° crankshaft angle signal inogadzirwa.
Musoro wemagineti ② unogadzira chiratidzo che120° unoiswa pa70° pamberi penzvimbo yepamusoro yakafa, saka chiratidzo chacho chinogonawo kunzi chiratidzo che70° pamberi penzvimbo yepamusoro yakafa, kureva kuti, panguva yekushanda kweinjini, musoro wemagineti ② unogadzira chiratidzo chekurova kwemoyo panzvimbo yepamusoro yakafa yesilinda yega yega.
Sensor yenzvimbo yemagnetic pulse yeToyota Company crankshaft position
Sisitimu yeTCCS yeToyota Company inoisa sensor yemagnetic pulse type crankshaft position mudistributor. Sensor yakakamurwa kuita zvikamu zvepamusoro nepazasi, chikamu chepamusoro chinogadzira chiratidzo cheG, uye chikamu chepazasi chinogadzira chiratidzo cheNe, zvese zvichishandisa rotor ine mazino anotenderera kuti coil ye induction generator yesignal ive nekuchinja kwe magnetic flux, nokudaro ichigadzira simba re electromotive rinoshanduka mu induction coil, iro rinozowedzerwa uye rotumirwa kuECU.
Chiratidzo cheNe chiratidzo chekuona kona yecrankshaft nekumhanya kweinjini, zvakaenzana nechiratidzo che1° cheNissan Company's magnetic pulse type crankshaft position sensor. Chiratidzo ichi chinogadzirwa nerotor (N0.2 timing rotor) yakasungirirwa pachikamu chezasi ine mazino makumi maviri nemana akapatsanurwa zvakaenzana uye coil yekunzwa iri pedyo.
Kana rotor ikatenderera, mukaha wemhepo uri pakati pemazino nechikamu cheflange (magnetic head) che sensing coil unochinja, zvichikonzera shanduko mumunda wemagineti unopfuura nepakati pe sensing coil uye zvichigadzira simba remagetsi rinoita kuti electromotive force ishandiswe. Kana mazino aswedera pedyo nemusoro wemagineti, pachava nekuchinja mukuwedzera nekuderera kwe magnetic flux, kuitira kuti zino rega rega rigadzire chiratidzo che AC voltage chakakwana mu sensing coil parinopfuura nepakati pe magnetic head. N0.2 timing rotor ine mazino makumi maviri nemana, saka kana rotor ikatenderera denderedzwa rimwe chete (kureva kuti, crankshaft inotenderera 720°), sensing coil inogadzira zviratidzo zve AC voltage makumi maviri nemana. Kurova kamwe chete kwechiratidzo cheNe mu cycle kwakaenzana ne 30° yekutenderera kwe crankshaft (720° ÷ 24 = 30°). Kuonekwa kwekona kwakanyatsojeka kunowanikwa nekukamura nguva yekutenderera ye 30° ne ECU kuita zvikamu makumi matatu zvakaenzana, nokudaro zvichigadzira chiratidzo chekutenderera che 1° crankshaft. Saizvozvowo, kumhanya kweinjini kunoyerwa neECU zvichienderana nenguva inopfuura pakati pemapulse maviri echiratidzo cheNe (60° crankshaft rotation). Chiratidzo cheG chinoshandiswa kuona masirinda uye kuona nzvimbo yepamusoro yepakati pepiston, yakaenzana nechiratidzo che120° chesensor yeNissan's magnetic pulse crankshaft position. Chiratidzo cheG chinogadzirwa neflange rotor (No.1 timing rotor) pamusoro peNe generator uye macoil ayo maviri akaenzana (G1 sensing coil uye G2 sensing coil). Nheyo yekugadzira chiratidzo chakafanana neiyo yechiratidzo cheNe. Chiratidzo cheG chinoshandiswawo sechiratidzo chekutarisa angle yecrankshaft.
Zviratidzo zveG1 neG2 zvinoona pakati pepamusoro pesilinda yechitanhatu nesirilinda yekutanga. Nekuda kwenzvimbo yejenareta yezviratidzo zveG1 neG2, kana zviratidzo zveG1 neG2 zvagadzirwa, piston haisi panzvimbo chaiyo pakati pepamusoro pepasi (BTDC), asi panzvimbo ye10° pamberi pepakati pepamusoro pepasi.
Kuonekwa kwe sensor yenzvimbo yemagnetic pulse crankshaft
Tora sensor yemagnetic pulse crankshaft position inoshandiswa muelectronic control system yeinjini ye2JZ-GE yeCrown 3.0 sedan semuenzaniso kuratidza nzira yekuona nayo.
Kuongororwa kwekuramba kwe sensor yenzvimbo ye crankshaft
Dzima switch yekupisa, bvisa chinongedzo che sensor ye crankshaft position, uye yera resistance values pakati pe terminals ye sensor ye crankshaft position uchishandisa multimeter's resistance setting (Tafura 1). Kana resistance values dzisiri mukati me range yakatarwa, crankshaft position sensor inofanira kutsiviwa.
Kana uchida kuziva zvakawanda, ramba uchiverenga zvimwe zvinyorwa pane ino saiti!
Ndapota tifonerei kana muchida zvigadzirwa zvakadaro.
Zhuo Meng Shanghai Auto Co., Ltd. yakazvipira kutengesa MG&MAXUSzvikamu zvemota zvinogamuchirwa Kutenga.
